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Priority claimed from JP58091923Aexternal-prioritypatent/JPS59219417A/en
Priority claimed from JP20316083Aexternal-prioritypatent/JPS6096726A/en
Application filed by Sumitomo Electric IndustriesfiledCriticalSumitomo Electric Industries
Priority claimed from EP84105780Aexternal-prioritypatent/EP0126481B1/en
Application grantedgrantedCritical
Publication of ATE37044T1publicationCriticalpatent/ATE37044T1/en